mirror of
https://github.com/c64scene-ar/llvm-6502.git
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e9e16c5f52
Use 8 bits from line number field to keep track of argument ordering while encoding debug info for an argument. That leaves 24 bit for line no, DebugLoc also allocates 24 bit for line numbers. If a function has more than 255 arguments then rest of the arguments will be ordered by llvm.dbg.* intrinsics' ordering in IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126793 91177308-0d34-0410-b5e6-96231b3b80d8
465 lines
22 KiB
C++
465 lines
22 KiB
C++
//===--- llvm/Analysis/DIBuilder.h - Debug Information Builder --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a DIBuilder that is useful for creating debugging
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// information entries in LLVM IR form.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_DIBUILDER_H
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#define LLVM_ANALYSIS_DIBUILDER_H
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#include "llvm/Support/DataTypes.h"
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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class BasicBlock;
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class Instruction;
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class Function;
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class Module;
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class Value;
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class LLVMContext;
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class MDNode;
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class StringRef;
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class DIDescriptor;
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class DIFile;
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class DIEnumerator;
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class DIType;
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class DIArray;
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class DIGlobalVariable;
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class DINameSpace;
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class DIVariable;
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class DISubrange;
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class DILexicalBlock;
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class DISubprogram;
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class DITemplateTypeParameter;
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class DITemplateValueParameter;
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class DIBuilder {
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private:
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Module &M;
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LLVMContext & VMContext;
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MDNode *TheCU;
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Function *DeclareFn; // llvm.dbg.declare
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Function *ValueFn; // llvm.dbg.value
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DIBuilder(const DIBuilder &); // DO NOT IMPLEMENT
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void operator=(const DIBuilder &); // DO NOT IMPLEMENT
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public:
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explicit DIBuilder(Module &M);
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const MDNode *getCU() { return TheCU; }
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enum ComplexAddrKind { OpPlus=1, OpDeref };
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/// createCompileUnit - A CompileUnit provides an anchor for all debugging
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/// information generated during this instance of compilation.
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/// @param Lang Source programming language, eg. dwarf::DW_LANG_C99
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/// @param File File name
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/// @param Dir Directory
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/// @param Producer String identify producer of debugging information.
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/// Usuall this is a compiler version string.
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/// @param isOptimized A boolean flag which indicates whether optimization
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/// is ON or not.
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/// @param Flags This string lists command line options. This string is
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/// directly embedded in debug info output which may be used
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/// by a tool analyzing generated debugging information.
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/// @param RV This indicates runtime version for languages like
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/// Objective-C.
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void createCompileUnit(unsigned Lang, StringRef File, StringRef Dir,
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StringRef Producer,
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bool isOptimized, StringRef Flags, unsigned RV);
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/// createFile - Create a file descriptor to hold debugging information
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/// for a file.
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DIFile createFile(StringRef Filename, StringRef Directory);
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/// createEnumerator - Create a single enumerator value.
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DIEnumerator createEnumerator(StringRef Name, uint64_t Val);
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/// createBasicType - Create debugging information entry for a basic
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/// type.
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/// @param Name Type name.
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/// @param SizeInBits Size of the type.
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/// @param AlignInBits Type alignment.
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/// @param Encoding DWARF encoding code, e.g. dwarf::DW_ATE_float.
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DIType createBasicType(StringRef Name, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Encoding);
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/// createQualifiedType - Create debugging information entry for a qualified
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/// type, e.g. 'const int'.
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/// @param Tag Tag identifing type, e.g. dwarf::TAG_volatile_type
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/// @param FromTy Base Type.
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DIType createQualifiedType(unsigned Tag, DIType FromTy);
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/// createPointerType - Create debugging information entry for a pointer.
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/// @param PointeeTy Type pointed by this pointer.
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/// @param SizeInBits Size.
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/// @param AlignInBits Alignment. (optional)
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/// @param Name Pointer type name. (optional)
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DIType createPointerType(DIType PointeeTy, uint64_t SizeInBits,
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uint64_t AlignInBits = 0,
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StringRef Name = StringRef());
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/// createReferenceType - Create debugging information entry for a c++
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/// style reference.
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DIType createReferenceType(DIType RTy);
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/// createTypedef - Create debugging information entry for a typedef.
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/// @param Ty Original type.
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/// @param Name Typedef name.
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/// @param File File where this type is defined.
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/// @param LineNo Line number.
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DIType createTypedef(DIType Ty, StringRef Name, DIFile File,
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unsigned LineNo);
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/// createFriend - Create debugging information entry for a 'friend'.
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DIType createFriend(DIType Ty, DIType FriendTy);
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/// createInheritance - Create debugging information entry to establish
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/// inheritance relationship between two types.
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/// @param Ty Original type.
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/// @param BaseTy Base type. Ty is inherits from base.
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/// @param BaseOffset Base offset.
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/// @param Flags Flags to describe inheritance attribute,
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/// e.g. private
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DIType createInheritance(DIType Ty, DIType BaseTy, uint64_t BaseOffset,
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unsigned Flags);
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/// createMemberType - Create debugging information entry for a member.
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/// @param Name Member name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param OffsetInBits Member offset.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Ty Parent type.
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DIType createMemberType(StringRef Name, DIFile File,
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unsigned LineNo, uint64_t SizeInBits,
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uint64_t AlignInBits, uint64_t OffsetInBits,
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unsigned Flags, DIType Ty);
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/// createClassType - Create debugging information entry for a class.
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/// @param Scope Scope in which this class is defined.
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/// @param Name class name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param OffsetInBits Member offset.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Elements class members.
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/// @param VTableHolder Debug info of the base class that contains vtable
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/// for this type. This is used in
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/// DW_AT_containing_type. See DWARF documentation
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/// for more info.
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/// @param TemplateParms Template type parameters.
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DIType createClassType(DIDescriptor Scope, StringRef Name, DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, uint64_t OffsetInBits,
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unsigned Flags, DIType DerivedFrom,
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DIArray Elements, MDNode *VTableHolder = 0,
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MDNode *TemplateParms = 0);
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/// createStructType - Create debugging information entry for a struct.
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/// @param Scope Scope in which this struct is defined.
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/// @param Name Struct name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Elements Struct elements.
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/// @param RunTimeLang Optional parameter, Objective-C runtime version.
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DIType createStructType(DIDescriptor Scope, StringRef Name, DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang = 0);
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/// createUnionType - Create debugging information entry for an union.
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/// @param Scope Scope in which this union is defined.
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/// @param Name Union name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param Flags Flags to encode member attribute, e.g. private
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/// @param Elements Union elements.
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/// @param RunTimeLang Optional parameter, Objective-C runtime version.
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DIType createUnionType(DIDescriptor Scope, StringRef Name, DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang = 0);
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/// createTemplateTypeParameter - Create debugging information for template
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/// type parameter.
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/// @param Scope Scope in which this type is defined.
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/// @param Name Type parameter name.
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/// @param Ty Parameter type.
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/// @param File File where this type parameter is defined.
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/// @param LineNo Line number.
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/// @param ColumnNo Column Number.
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DITemplateTypeParameter
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createTemplateTypeParameter(DIDescriptor Scope, StringRef Name, DIType Ty,
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MDNode *File = 0, unsigned LineNo = 0,
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unsigned ColumnNo = 0);
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/// createTemplateValueParameter - Create debugging information for template
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/// value parameter.
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/// @param Scope Scope in which this type is defined.
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/// @param Name Value parameter name.
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/// @param Ty Parameter type.
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/// @param Value Constant parameter value.
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/// @param File File where this type parameter is defined.
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/// @param LineNo Line number.
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/// @param ColumnNo Column Number.
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DITemplateValueParameter
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createTemplateValueParameter(DIDescriptor Scope, StringRef Name, DIType Ty,
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uint64_t Value,
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MDNode *File = 0, unsigned LineNo = 0,
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unsigned ColumnNo = 0);
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/// createArrayType - Create debugging information entry for an array.
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/// @param Size Array size.
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/// @param AlignInBits Alignment.
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/// @param Ty Element type.
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/// @param Subscripts Subscripts.
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DIType createArrayType(uint64_t Size, uint64_t AlignInBits,
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DIType Ty, DIArray Subscripts);
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/// createVectorType - Create debugging information entry for a vector type.
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/// @param Size Array size.
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/// @param AlignInBits Alignment.
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/// @param Ty Element type.
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/// @param Subscripts Subscripts.
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DIType createVectorType(uint64_t Size, uint64_t AlignInBits,
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DIType Ty, DIArray Subscripts);
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/// createEnumerationType - Create debugging information entry for an
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/// enumeration.
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/// @param Scope Scope in which this enumeration is defined.
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/// @param Name Union name.
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/// @param File File where this member is defined.
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/// @param LineNo Line number.
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/// @param SizeInBits Member size.
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/// @param AlignInBits Member alignment.
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/// @param Elements Enumeration elements.
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DIType createEnumerationType(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits,
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uint64_t AlignInBits, DIArray Elements);
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/// createSubroutineType - Create subroutine type.
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/// @param File File in which this subroutine is defined.
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/// @param ParamterTypes An array of subroutine parameter types. This
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/// includes return type at 0th index.
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DIType createSubroutineType(DIFile File, DIArray ParameterTypes);
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/// createArtificialType - Create a new DIType with "artificial" flag set.
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DIType createArtificialType(DIType Ty);
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/// createTemporaryType - Create a temporary forward-declared type.
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DIType createTemporaryType();
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DIType createTemporaryType(DIFile F);
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/// retainType - Retain DIType in a module even if it is not referenced
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/// through debug info anchors.
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void retainType(DIType T);
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/// createUnspecifiedParameter - Create unspeicified type descriptor
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/// for a subroutine type.
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DIDescriptor createUnspecifiedParameter();
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/// getOrCreateArray - Get a DIArray, create one if required.
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DIArray getOrCreateArray(Value *const *Elements, unsigned NumElements);
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/// getOrCreateSubrange - Create a descriptor for a value range. This
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/// implicitly uniques the values returned.
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DISubrange getOrCreateSubrange(int64_t Lo, int64_t Hi);
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/// createGlobalVariable - Create a new descriptor for the specified global.
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/// @param Name Name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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createGlobalVariable(StringRef Name, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// createStaticVariable - Create a new descriptor for the specified
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/// variable.
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/// @param Conext Variable scope.
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/// @param Name Name of the variable.
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/// @param LinakgeName Mangled name of the variable.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type.
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/// @param isLocalToUnit Boolean flag indicate whether this variable is
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/// externally visible or not.
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/// @param Val llvm::Value of the variable.
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DIGlobalVariable
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createStaticVariable(DIDescriptor Context, StringRef Name,
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StringRef LinkageName, DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit, llvm::Value *Val);
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/// createLocalVariable - Create a new descriptor for the specified
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/// local variable.
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/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
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/// DW_TAG_arg_variable.
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/// @param Scope Variable scope.
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/// @param Name Variable name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type
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/// @param AlwaysPreserve Boolean. Set to true if debug info for this
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/// variable should be preserved in optimized build.
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/// @param Flags Flags, e.g. artificial variable.
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/// @param ArgNo If this variable is an arugment then this argument's
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/// number. 1 indicates 1st argument.
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DIVariable createLocalVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name,
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DIFile File, unsigned LineNo,
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DIType Ty, bool AlwaysPreserve = false,
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unsigned Flags = 0,
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unsigned ArgNo = 0);
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/// createComplexVariable - Create a new descriptor for the specified
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/// variable which has a complex address expression for its address.
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/// @param Tag Dwarf TAG. Usually DW_TAG_auto_variable or
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/// DW_TAG_arg_variable.
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/// @param Scope Variable scope.
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/// @param Name Variable name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Variable Type
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/// @param Addr A pointer to a vector of complex address operations.
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/// @param NumAddr Num of address operations in the vector.
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/// @param ArgNo If this variable is an arugment then this argument's
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/// number. 1 indicates 1st argument.
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DIVariable createComplexVariable(unsigned Tag, DIDescriptor Scope,
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StringRef Name, DIFile F, unsigned LineNo,
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DIType Ty, Value *const *Addr,
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unsigned NumAddr, unsigned ArgNo = 0);
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/// createFunction - Create a new descriptor for the specified subprogram.
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/// See comments in DISubprogram for descriptions of these fields.
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/// @param Scope Function scope.
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/// @param Name Function name.
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/// @param LinkageName Mangled function name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Function type.
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/// @param isLocalToUnit True if this function is not externally visible..
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/// @param isDefinition True if this is a function definition.
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/// @param Flags e.g. is this function prototyped or not.
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/// This flags are used to emit dwarf attributes.
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/// @param isOptimized True if optimization is ON.
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/// @param Fn llvm::Function pointer.
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DISubprogram createFunction(DIDescriptor Scope, StringRef Name,
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StringRef LinkageName,
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DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit,
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bool isDefinition,
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unsigned Flags = 0,
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bool isOptimized = false,
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Function *Fn = 0);
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/// createMethod - Create a new descriptor for the specified C++ method.
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/// See comments in DISubprogram for descriptions of these fields.
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/// @param Scope Function scope.
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/// @param Name Function name.
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/// @param LinkageName Mangled function name.
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/// @param File File where this variable is defined.
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/// @param LineNo Line number.
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/// @param Ty Function type.
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/// @param isLocalToUnit True if this function is not externally visible..
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/// @param isDefinition True if this is a function definition.
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/// @param Virtuality Attributes describing virutallness. e.g. pure
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/// virtual function.
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/// @param VTableIndex Index no of this method in virtual table.
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/// @param VTableHolder Type that holds vtable.
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/// @param Flags e.g. is this function prototyped or not.
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/// This flags are used to emit dwarf attributes.
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/// @param isOptimized True if optimization is ON.
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/// @param Fn llvm::Function pointer.
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DISubprogram createMethod(DIDescriptor Scope, StringRef Name,
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StringRef LinkageName,
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DIFile File, unsigned LineNo,
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DIType Ty, bool isLocalToUnit,
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bool isDefinition,
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unsigned Virtuality = 0, unsigned VTableIndex = 0,
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MDNode *VTableHolder = 0,
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unsigned Flags = 0,
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bool isOptimized = false,
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Function *Fn = 0);
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/// createNameSpace - This creates new descriptor for a namespace
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/// with the specified parent scope.
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/// @param Scope Namespace scope
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/// @param Name Name of this namespace
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/// @param File Source file
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/// @param LineNo Line number
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DINameSpace createNameSpace(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNo);
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/// createLexicalBlock - This creates a descriptor for a lexical block
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/// with the specified parent context.
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/// @param Scope Parent lexical scope.
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/// @param File Source file
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/// @param Line Line number
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/// @param Col Column number
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DILexicalBlock createLexicalBlock(DIDescriptor Scope, DIFile File,
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unsigned Line, unsigned Col);
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/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *insertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
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/// @param Storage llvm::Value of the variable
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *insertDeclare(llvm::Value *Storage, DIVariable VarInfo,
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Instruction *InsertBefore);
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/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertAtEnd Location for the new intrinsic.
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Instruction *insertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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BasicBlock *InsertAtEnd);
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/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
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/// @param Val llvm::Value of the variable
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/// @param Offset Offset
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/// @param VarInfo Variable's debug info descriptor.
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/// @param InsertBefore Location for the new intrinsic.
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Instruction *insertDbgValueIntrinsic(llvm::Value *Val, uint64_t Offset,
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DIVariable VarInfo,
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Instruction *InsertBefore);
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};
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} // end namespace llvm
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#endif
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